/* ==========================================================================
   Panel de código — recurso de firma (manual sección 5)
   ========================================================================== */

.code-panel {
  background: var(--noir-card);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.6);
}

.code-panel__bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  background: rgba(244, 239, 228, 0.03);
  border-bottom: 1px solid var(--line-dark);
}

.code-panel__dots {
  display: flex;
  gap: 6px;
}

.code-panel__dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(244, 239, 228, 0.18);
}

.code-panel__filename {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--on-surface-soft);
  margin-inline: auto;
}

.code-panel__body {
  padding: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: clamp(0.8125rem, 0.6vw + 0.6rem, 0.9375rem);
  line-height: 1.85;
  overflow-x: auto;
}

.code-line {
  display: flex;
  white-space: pre;
  padding-inline: 1.25rem;
  transition-delay: calc(var(--i, 0) * 55ms);
}

.code-line:hover {
  background: rgba(244, 239, 228, 0.03);
}

.code-line__num {
  flex-shrink: 0;
  width: 2.25rem;
  color: rgba(244, 239, 228, 0.28);
  user-select: none;
}

.code-line__code .tok-key {
  color: var(--accent-bright);
}

.code-line__code .tok-string {
  color: var(--luz-bright);
}

.code-line__code .tok-kw {
  color: var(--rose);
}

.code-line__code .tok-punct {
  color: rgba(244, 239, 228, 0.45);
}

.code-line__code .tok-comment {
  color: var(--ink-soft);
}

.code-caret {
  display: inline-block;
  width: 0.5em;
  height: 1.1em;
  background: var(--luz);
  vertical-align: text-bottom;
  animation: caret-blink 1s step-end infinite;
}

@keyframes caret-blink {
  50% {
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .code-caret {
    display: none;
  }
}

@media (max-width: 640px) {
  .code-panel__body {
    font-size: 0.75rem;
  }

  .code-line__num {
    width: 1.75rem;
  }
}